1 - AS 2947.3-1995 INSULATORS - PORCELAIN AND GLASS FOR OVERHEAD POWER LINES - VOLTAGES GREATER THAN 1000 V.A.C. - COUPLINGS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
9 - SECTION 2 DIMENSIONS OF BALL AND SOCKET COUPLINGS OF STRING INSULATOR UNITS
9 - 2.1 GENERAL
9 - 2.2 PIN BALL
9 - 2.3 SOCKET
9 - 2.4 HOOK-ON GO GAUGE
9 - 2.5 LOWER PART OF THE INSULATOR
10 - 2.6 LOCKING DEVICE
18 - SECTION 3 DIMENSIONS OF CLEVIS AND TONGUE COUPLINGS OF STRING INSULATOR UNITS
18 - 3.1 GENERAL
18 - 3.2 DESIGNATION
18 - 3.3 DIMENSIONS
21 - SECTION 4 LOCKING DEVICES FOR BALL AND SOCKET COUPLINGS OF STRING INSULATOR UNITS: DIMENSIONS AND TESTS
21 - 4.1 GENERAL
21 - 4.2 SCOPE OF SECTION
21 - 4.3 LOCKING DEVICE
21 - 4.3.1 General
21 - 4.3.2 Split pins
21 - 4.3.3 W-clips
21 - 4.4 TEST SCHEDULE
22 - 4.5 SHAPE OF THE LOCKING DEVICE
22 - 4.5.1 Split pin
22 - 4.5.2 W-Clip
22 - 4.6 METHOD OF USING THE LOCKING DEVICES
22 - 4.6.1 Split pin
22 - 4.6.2 W-Clip
22 - 4.7 CLASSIFICATION OF TESTS
22 - 4.8 QUALIFICATION TESTS
22 - 4.9 HARDNESS
27 - 4.10 BENDING (RESISTANCE TO CRACKING)
27 - 4.11 CORROSION RESISTANCE TEST
27 - 4.12 SAMPLE TESTS
28 - 4.13 GENERAL RULES FOR THE VISUAL EXAMINATION TEST (see Item (a) in Clause 4. 12)
28 - 4.13.1 General
29 - 4.13.2 Visual examination
29 - 4.14 GENERAL RULES AND TESTS FOR ITEMS (b), (c) AND (d) IN CLAUSE 4. 12
29 - 4.14.1 General
29 - 4.14.2 Verification of dimensions
30 - 4.14.3 Hardness test
30 - 4.14.4 Bending (resistance to cracking)
30 - 4.15 RE-TEST PROCEDURE
31 - SECTION 5 DIMENSIONS OF INSULATOR PIN HOLES
31 - 5.1 SCOPE
31 - 5.2 DIMENSIONS
32 - APPENDIX A - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
32 - A1 SCOPE
32 - A2 STATISTICAL SAMPLING
32 - A3 PRODUCT CERTIFICATION
32 - A4 SUPPLIERS QUALITY SYSTEM
33 - A5 OTHER MEANS OF ASSESSMENT
34 - APPENDIX B - POSITION OF THE PIN BALL IN THE SOCKET END
35 - APPENDIX C - GAUGES FOR BALL AND SOCKET COUPLINGS
35 - C1 SCOPE
35 - C2 TOLERANCE SYSTEM
35 - C3 CONSTRUCTIONAL FEATURES OF THE GAUGES
35 - C4 PIN BALLS
36 - C5 SOCKET ENDS
37 - C6 PIN GO GAUGE FOR BALL HEIGHT, SHANK DIAMETER AND SHANK LENGTH
38 - C7 PIN GO GAUGE FOR BALL DIAMETER
39 - C8 PIN NOT GO GAUGE FOR BALL HEIGHT
40 - C9 PIN NOT GO GAUGE FOR BALL DIAMETER
40 - C10 PIN NOT GO GAUGE FOR SHANK DIAMETER
41 - C11 SOCKET GO GAUGE FOR ENTRY HEIGHT, ENTRY WIDTH AND NECK WIDTH
43 - C12 SOCKET GO GAUGE FOR INTERNAL HEIGHT AND INTERNAL DIAMETER
45 - C13 SOCKET NOT GO GAUGE FOR ENTRY HEIGHT
47 - C14 SOCKET NOT GO GAUGE FOR NECK WIDTH
48 - APPENDIX D - ITEMS TO BE SPECIFIED BY THE PURCHASER OR SUBJECT TO AGREEMENT BETWEEN THE PURCHASER AND MANUFACTURER
48 - D1 GENERAL
48 - D2 ITEMS SUBJECT TO AGREEMENT BETWEEN THE PURCHASER AND THE MANUFACTURER
49 - APPENDIX E - GAUGES FOR W-CLIPS
51 - APPENDIX F - GAUGES FOR INSULATOR PIN HOLES
51 - F1 SCOPE
52 - F2 INSULATOR PIN HOLES